To go along with my review of "Tetro", here are some videos related to the filmmaking process behind the movie.
First, here is a video of Francis Coppola talking about he is still learning today:
This is a segment on Mihai Malaimare, Jr., the cinematographer of the film:
And, finally, though I cannot find embed codes for this, here is a video in two parts featuring Walter Murch at the Final Cut Pro User Group Supermeet in London, discussing the process of cutting "Tetro" on Final Cut Pro.
This is Part 1 and this is Part 2.